Go in the cave behind the quest giver, it continues to the right after you enter. It's easy to miss since this cave looks like one of the standard "dead end" ones.
From there you will see Uchek, whom you will speak to in order to continue the quest. Once you do, you will phase into a spirit world, where the objective is to find the three "shrines". There is one in the left and right wing from Uchek, and one more directly behind him in the middle. Simply walk up to a campfire to cleanse that shrine.
You will be aggro'd by various spirits in the cave, and while you cannot directly attack them, you can kill them with the Light of Souls item in your bags. It does an AOE blast around your character killing any souls attacking you. They don't hit very hard, so I gather up a few, training them together while I head to the shrines, and then click the Light of Souls on cooldown to kill a bunch at once.
Once all three camps are purged, you exit the spirit realm. Then leave the cave, and talk to Buunu once more to turn in.
Quest
Night Terrors
A World of Warcraft quest in Twilight Highlands. Facts and objectives from the current retail game data.
The highest voted Wowhead comments for this page. They are community notes, not TheWoWDB comments.
1st: Go right of quest giver along a ledge to the end.
2nd: Around the centre on the minimap
3rd: Take a left in the small 'nook' on the bottom of the map
If you're anything like me, you'll be standing by the campfire wondering if the quest is bugged, but the first campfire right by uchek is not a shrine
Quest facts
The client quest POI data records no map location for this quest, so no map is shown.
Check whether you have already completed this quest
in-game: /run print(C_QuestLog.IsQuestFlaggedCompleted(28170))
Requirements
Read from the Blizzard quest API.
Description
Me friend Uchek is in de cave already. We set up three shrines inside. All you gotta do is flush out de bad juju from each one, mon. Go inside de cave here and talk to Uchek. He put you in a trance, put you in de spirit realm. Tread carefully! If you see a ghostly beast, you don't be panicking. Shine de Light of Souls on de beast for a moment or two, and de light will send 'em away for good. De light will keep you safe. Now go cleanse de three shrines!
Community notes from Wowhead · 45 comments
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Reputation: Orgrimmar +250
Founded by Thrall, this Horde capital city is home to many of the proud orc clans of Durotar.
Reputation group: Horde.
Other quests in Twilight Highlands that reward Orgrimmar reputation: Emergency Aid (+150), Stalled Negotiations (+75), Dangerous Compassion (+75), Madness (+250), Muddied Waters (+250), Securing the Beach Head (+10).
Item facts are the current retail client’s (ItemSparse); the specialisations for a pick-one item are the ones the Blizzard quest API lists; faction and currency text is the client’s own. Lowest listed price = the US commodity auction house now.